1. Massachusetts General Hospital, Boston, Massachusetts.
2. Endocrinology – Metabolic Service, Walter Reed National Military Medical Center, Bethesda, Maryland.
3. Division of Endocrinology, Diabetes, and Metabolism, The Johns Hopkins University School of Medicine, Baltimore, Maryland.
4. Western Slope Endocrinology, Grand Junction, Colorado.
5. Departments of Clinical Medicine and Endocrinology, Aalborg University and Aalborg University Hospital, Aalborg, Denmark.
6. Thyroid Section, Hospital de Clinicas de Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
7. Pediatrics – Chairman's Office, University of Florida College of Medicine, Gainesville, Florida.
8. Division of Endocrinology, Diabetes and Clinical Nutrition, Oregon Health & Science University, Portland, Oregon.
9. Section of Endocrine Surgery, Duke University School of Medicine, Durham, North Carolina.
10. Division of Endocrinology, Mayo Clinic, Rochester, Minnesota.
11. Institute of Nuclear Medicine, University Hospital Bern, Switzerland.